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IJSTR >> Volume 9 - Issue 9, September 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Primary User Aided Cognitive Radio Network With Optimum Location Of Relay

[Full Text]



Md Abul Kalam Azad, Anup Majumder, Muhammad R. A. Khandaker, Jugal K. Das, Md. Imdadul Islam



Channel capacity, convex hull, SIR, MAC and BC phase.



In this paper, we compare the normalized channel capacity of single user and multiuser models of primary user (PU) aided cognitive radio network (CRN). The single user model gives the best performance; however, it often fails to represent the real life environment. On the other hand, multi-user model represents more realistic scenarios of wireless links; however, its performance is worse than that of single user. Therefore, we propose a new communication model for selecting the appropriate PUs as relay nodes that is based on the geometry of service area, the offered traffic of PUs and the existence probability of PUs in an appropriate position. Through simulation experiment, we prove that the proposed model gives more realistic results compared to the previous works on multi-user model in CRN.



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